Finding the Fourth Proportional to 139,968,017.68, 209,952,026.51 and 103,688,312.08
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Solution
The fourth proportional to 139,968,017.68, 209,952,026.51 and 103,688,312.08 is: 155,532,468.11
Step by Step Solution
- Step 1: Write the proportion equation
139,968,017.68 : 209,952,026.51 = 103,688,312.08 : x - Step 2: Convert to fraction form
139,968,017.68/209,952,026.51 = 103,688,312.08/x - Step 3: Cross multiply
139,968,017.68x = 209,952,026.51 × 103,688,312.08 - Step 4: Simplify right side
139,968,017.68x = 21,769,571,246,597,312 - Step 5: Solve for x
x = 21,769,571,246,597,312/139,968,017.68 - Step 6: Final answer
x = 155,532,468.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.